CN102200020A - Yielding type special-shaped beam anchor rope truss roadway support system - Google Patents
Yielding type special-shaped beam anchor rope truss roadway support system Download PDFInfo
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- CN102200020A CN102200020A CN2011101045839A CN201110104583A CN102200020A CN 102200020 A CN102200020 A CN 102200020A CN 2011101045839 A CN2011101045839 A CN 2011101045839A CN 201110104583 A CN201110104583 A CN 201110104583A CN 102200020 A CN102200020 A CN 102200020A
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- 239000011435 rock Substances 0.000 claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 230000000694 effects Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
本发明涉及一种让压型异型梁锚索桁架巷道支护系统，在所述巷道表面铺设有金属网，在煤岩顶板或巷帮上设置有让压型异型梁锚索桁架，所述让压型异型梁锚索桁架由异型梁、让压装置及锚索或锚杆组成，每根异形梁配有数根锚索或锚杆；所述锚索或锚杆穿过所述异型梁及金属网锚入到岩层中；所述锚索或锚杆外锚端安装有使锚索或锚杆端头与异型梁紧密接触并起让压作用的让压装置和托盘。本发明具有以下优点：1.护表面积大，刚度高，不易失稳，确保支护系统的整体性。2.节省钢材，降低成本，提高效益。3.强度高，整体支护性能调节空间大。4.让压装置能起到有效的让压作用，耦合让压支护保证了整体支护系统的稳定安全。
The invention relates to a roadway support system with pressure relief special-shaped beam and anchor cable truss. A metal mesh is laid on the surface of the roadway, and a pressure relief special-shaped beam and anchor cable truss is arranged on the coal rock roof or the side of the road. Anchor cable truss with special-shaped beams is composed of special-shaped beams, compression devices and anchor cables or anchor rods. Each special-shaped beam is equipped with several anchor cables or anchor rods; the anchor cables or anchor rods pass through the special-shaped beams and metal The net is anchored into the rock formation; the outer anchor end of the anchor cable or anchor rod is installed with a pressure relief device and a tray that make the end of the anchor cable or anchor rod closely contact with the special-shaped beam and play a role in pressure relief. The invention has the following advantages: 1. The protection surface area is large, the rigidity is high, and it is not easy to lose stability, thereby ensuring the integrity of the support system. 2. Save steel, reduce costs and improve efficiency. 3. The strength is high, and the adjustment space of the overall support performance is large. 4. The pressure yielding device can play an effective pressure yielding role, and the coupled pressure yielding support ensures the stability and safety of the overall support system.
Description
Technical field
The present invention relates to a kind of mine timbering field, the particularly a kind of special-shaped beam anchor cable of die mould truss roadway support system that allows.
Background technology
The colliery tunnel support technology is the key technology in the coal mining.Keep adjoining rock stability, preventing the tunnel excessive deformation and destroying is the necessary condition that realizes mine safety, High-efficient Production.Along with mine develops both in depth and in breadth, the roadway support problem shows more and more outstandingly.
At present, BOLTING TECHNOLOGY TO COAL ROADWAY reaches its maturity, and the bolt support scope is applied to IV, V level country rock gradually from I, II, III level country rock.But under these complex conditions particularly for the tunnel of deep high-ground stress large span, roadway roof absciss layer distortion especially severe, only can't the effective support top board by the anchor shaft anchor cable institute that uses at present, top board integral body often takes place help two walls to shear the phenomenon of landing along the lane; Owing to be subjected to high stress, portion of the group distortion of heading is also very big, usually causes the tunnel shrinkage strain to cause the tunnel to use in addition.Particularly for gob side entry driving, the high-performance anchor pole combination supporting technology of using also seems powerless at present.The deflection of lane group is the coal column lateral wall particularly, at the beginning of the pick lane tangible distortion is just arranged, and to recovery phase, deflection reaches more than 70% of total deformation usually, and it is nearly 2/3 that section shrinks, and the tunnel can't be used, even causes security incident.Many work planes are had to stop production and are overhauled the tunnel or dig the tunnel in addition, and not only support cost is very high, and driving speed is low, and brings a lot of potential safety hazards, seriously restricts the quick propelling of coal-face and the raising of mine output and benefit.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of supporting intensity height is provided, safe, Denver Nuggets speed is fast, when particularly above back fragmentation or top board, having structural belt or absciss layer, can well control top board, improve the supporting stress, that avoids the occurrence of large-area roof fall accident allows the special-shaped beam anchor cable of die mould truss roadway support system.
For achieving the above object, the present invention adopts following technical proposals:
A kind of special-shaped beam anchor cable of die mould truss roadway support system that allows, comprise special-shaped beam, allow pressure device, anchor cable, anchor pole, pallet and wire lath, be equipped with wire lath on surface, described tunnel, help in coal rock roof plate or lane to be provided with and allow the special-shaped beam anchor cable of die mould truss, described allow the special-shaped beam anchor cable of die mould truss by special-shaped beam, allow pressure device and anchor cable or anchor pole form, every profiled beam is furnished with several anchor cables or anchor pole; Described anchor cable or anchor pole pass described special-shaped beam and wire lath anchors in the rock stratum, and apply prestressing force, country rock is formed the extruding pocket protect effect; The outer anchor end of described anchor cable or anchor pole be equipped with anchor cable or termination point of anchor rod are closely contacted with special-shaped beam and play allow the pressure effect allow pressure device and pallet.
Described special-shaped beam section is " II " shape, this abnormal shape beam by horizontal web and longitudinally the edge of a wing connect and compose.
Described pallet is annular pallet or wedge shape pallet.
Described allow press-fit be changed to a metal cydariform collar.
The present invention has the following advantages:
1. the special-shaped beam of support system is compared general steel channel beam, steel I-beam, it is big to protect surface area, the rigidity height, be difficult for unstability, the more effective transmission anchor shaft anchor cable prestressing force of energy is in top board or lane group, surrouding rock deformation can be controlled in the allowed band, avoid causing the bearing capacity forfeiture of country rock itself, thereby guarantee the globality of support system because of excessive deformation.
2. the special-shaped beam of support system is compared steel channel beam, steel I-beam, under the situation that identical supporting intensity requires, has clear superiority aspect economy, saves steel, reduces cost, and increases the benefit.
3. support system intensity height, it is big that whole supporting performance is regulated the space, special-shaped beam is used with anchor pole, anchor cable, can carry out effective supporting to the tunnel in conjunction with on-the-spot geological condition adjustment abnormal shape beam size and anchor pole and parameters such as anchor cable quantity, model to carry out the coupling of mechanical property.
Support system pressure device can be played effectively allow the pressure effect, after the support system bearing capacity reaches certain limit, allow the tunnel to produce certain deformation with release pressure.The coupling yield supporting has guaranteed the monolithic stability and the safety of support system.
Description of drawings
Fig. 1 is top, a lane of the present invention example structure schematic diagram;
Fig. 2 is top, a lane of the present invention embodiment face upwarding assumption diagram;
Fig. 3 is that annular of the present invention allows pressure device structure enlarged drawing;
Fig. 4 is that wedge shape of the present invention allows pressure device structure enlarged drawing;
Fig. 5 is the special-shaped girder construction enlarged drawing of the present invention;
1. anchor poles wherein, 2. anchor cable, 3. special-shaped beam, 4. wire lath 5. allows pressure device, 6. annular pallet, 7. wedge shape pallet, 8. steel band, 9. web, the 10. edge of a wing, 11. anchor cable holes.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Shown in Fig. 1-5, a kind of special-shaped beam anchor cable of die mould truss roadway support system that allows, comprise special-shaped beam 3, allow pressure device 5, anchor cable 2, anchor pole 1, pallet and wire lath 4, lay wire lath 4 on the surface, tunnel, help in coal rock roof plate or lane to be provided with and allow the special-shaped beam anchor cable of die mould truss, described allow the special-shaped beam anchor cable of die mould truss by special-shaped beam 3, allow pressure device 5 and anchor cable 2 or anchor pole 1 form, every profiled beam 3 is furnished with several anchor cables 2 or anchor pole 1.At interval special-shaped beam 3 and steel band 8 are set under coal rock roof plate, anchor cable 2 passes special-shaped beam 3 and wire lath 4 anchors in the rock stratum, and anchor cable 2 stretch-draw are also fixing with special-shaped beam 3, form prestressing force, top board is formed the extruding pocket protect effect; The outer anchor ends of anchor cable 2 are installed and are allowed pressure device 5 and pallet, play the effect of pressing that allows, and use annular pallet 6 when anchor cable 2 is vertically installed, and are used in combination annular pallet 6 and wedge shape pallet 7 when tilting to install.When the country rock situation was relatively poor, sample is helped in the lane can be provided with deformed steel girder 3 when (being called for short lane group) helped in tunnel two, fixing with anchor pole 1 or anchor cable 2, realized top group supporting intensity coupling coupling, controlled surrouding rock deformation jointly.
Described special-shaped beam section is " II " shape, and this abnormal shape beam is connected and composed by the web 9 and the horizontal edge of a wing 10 longitudinally, and the edge of a wing 10 is provided with the anchor cable hole 11 that the anchor cable hole is passed for anchor cable 2.
The described pressure device 5 that allows is a metal cydariform collar.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101045839A CN102200020A (en) | 2011-04-26 | 2011-04-26 | Yielding type special-shaped beam anchor rope truss roadway support system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101045839A CN102200020A (en) | 2011-04-26 | 2011-04-26 | Yielding type special-shaped beam anchor rope truss roadway support system |
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| CN102200020A true CN102200020A (en) | 2011-09-28 |
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| CN2011101045839A Pending CN102200020A (en) | 2011-04-26 | 2011-04-26 | Yielding type special-shaped beam anchor rope truss roadway support system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704965A (en) * | 2012-05-21 | 2012-10-03 | 严红 | Method for preventing tunnel top plate collapse risk caused by severe mining |
| CN102733834A (en) * | 2012-06-27 | 2012-10-17 | 云南文山斗南锰业股份有限公司 | Roof supporting method |
| CN102817620A (en) * | 2012-08-13 | 2012-12-12 | 大同煤矿集团有限责任公司 | Method for supporting ultra-thick and fluffy coal roadway |
| CN102937030A (en) * | 2012-11-26 | 2013-02-20 | 山东大学 | Bolting-grouting integrated support method for zonal disintegration of deep roadway surrounding rock |
| CN106089269A (en) * | 2014-06-08 | 2016-11-09 | 衢州市优德工业设计有限公司 | A kind of system of underground engineering roadway yield supporting |
| CN107218069A (en) * | 2017-07-18 | 2017-09-29 | 陕西陕煤黄陵矿业有限公司 | A kind of back suspension device and method for protecting support |
| CN112983520A (en) * | 2021-04-06 | 2021-06-18 | 山东大学 | Multistage pressure type stock that lets suitable for soft rock large deformation tunnel is strutted |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2075090A (en) * | 1980-05-01 | 1981-11-11 | Jennmar Corp | Truss assemblies and plate beams for supporting mine roofs |
| US4881853A (en) * | 1986-08-28 | 1989-11-21 | Benning Guenter | Support section for mines and tunnels |
| CN1594834A (en) * | 2004-07-12 | 2005-03-16 | 中国矿业大学 | Truss supporting technology for ingredient top slope deformation control |
| WO2006076828A1 (en) * | 2005-01-21 | 2006-07-27 | Zeyu Li | A hydraulic roof support |
| CN2881100Y (en) * | 2006-01-17 | 2007-03-21 | 兖矿集团福兴实业公司鲍矿大帅支护厂 | Joist of reinforced bar ladder |
| CN200996294Y (en) * | 2007-01-30 | 2007-12-26 | 阳泉市金法支护有限责任公司 | Mining H-shaped supporting beam |
| CN201090226Y (en) * | 2007-08-03 | 2008-07-23 | 王运来 | Anchor anti-rift arrangement |
| CN202064980U (en) * | 2011-04-26 | 2011-12-07 | 山东大学 | Support system for pressure release special-shaped beam anchor cable truss tunnel |
-
2011
- 2011-04-26 CN CN2011101045839A patent/CN102200020A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2075090A (en) * | 1980-05-01 | 1981-11-11 | Jennmar Corp | Truss assemblies and plate beams for supporting mine roofs |
| US4881853A (en) * | 1986-08-28 | 1989-11-21 | Benning Guenter | Support section for mines and tunnels |
| CN1594834A (en) * | 2004-07-12 | 2005-03-16 | 中国矿业大学 | Truss supporting technology for ingredient top slope deformation control |
| WO2006076828A1 (en) * | 2005-01-21 | 2006-07-27 | Zeyu Li | A hydraulic roof support |
| CN2881100Y (en) * | 2006-01-17 | 2007-03-21 | 兖矿集团福兴实业公司鲍矿大帅支护厂 | Joist of reinforced bar ladder |
| CN200996294Y (en) * | 2007-01-30 | 2007-12-26 | 阳泉市金法支护有限责任公司 | Mining H-shaped supporting beam |
| CN201090226Y (en) * | 2007-08-03 | 2008-07-23 | 王运来 | Anchor anti-rift arrangement |
| CN202064980U (en) * | 2011-04-26 | 2011-12-07 | 山东大学 | Support system for pressure release special-shaped beam anchor cable truss tunnel |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704965A (en) * | 2012-05-21 | 2012-10-03 | 严红 | Method for preventing tunnel top plate collapse risk caused by severe mining |
| CN102704965B (en) * | 2012-05-21 | 2015-09-09 | 中国矿业大学 | One prevents violent mining influence back to collapse method for leakage |
| CN102733834A (en) * | 2012-06-27 | 2012-10-17 | 云南文山斗南锰业股份有限公司 | Roof supporting method |
| CN102733834B (en) * | 2012-06-27 | 2015-12-16 | 云南文山斗南锰业股份有限公司 | A kind of roof timbering method |
| CN102817620A (en) * | 2012-08-13 | 2012-12-12 | 大同煤矿集团有限责任公司 | Method for supporting ultra-thick and fluffy coal roadway |
| CN102937030A (en) * | 2012-11-26 | 2013-02-20 | 山东大学 | Bolting-grouting integrated support method for zonal disintegration of deep roadway surrounding rock |
| CN102937030B (en) * | 2012-11-26 | 2015-06-10 | 山东大学 | Bolting-grouting integrated support method for zonal disintegration of deep roadway surrounding rock |
| CN106089269A (en) * | 2014-06-08 | 2016-11-09 | 衢州市优德工业设计有限公司 | A kind of system of underground engineering roadway yield supporting |
| CN106089269B (en) * | 2014-06-08 | 2018-05-01 | 衢州市优德工业设计有限公司 | A kind of system of underground engineering roadway yield supporting |
| CN107218069A (en) * | 2017-07-18 | 2017-09-29 | 陕西陕煤黄陵矿业有限公司 | A kind of back suspension device and method for protecting support |
| CN112983520A (en) * | 2021-04-06 | 2021-06-18 | 山东大学 | Multistage pressure type stock that lets suitable for soft rock large deformation tunnel is strutted |
| CN112983520B (en) * | 2021-04-06 | 2022-03-04 | 山东大学 | A multi-stage yielding bolt suitable for large deformation tunnel support in soft rock |
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Application publication date: 20110928 |